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http://dx.doi.org/10.7316/KHNES.2015.26.6.532

Effects of Process Variables on the Growth of Dendrite in the Electrochemical Alane(AlH3) Production Process  

KIM, HYOSUB (Department of Chemical Engineering and Applied Chemistry, Chungnam National University)
PARK, HYUNGYU (Department of Chemical Engineering and Applied Chemistry, Chungnam National University)
PARK, CHUSIK (Hydrogen Energy Research Center, Korea Institute of Energy Research)
BAE, KIKWANG (Hydrogen Energy Research Center, Korea Institute of Energy Research)
KIM, YOUNGHO (Department of Chemical Engineering and Applied Chemistry, Chungnam National University)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.26, no.6, 2015 , pp. 532-540 More about this Journal
Abstract
Electrochemical alane ($AlH_3$) production process can be provided as a synthesis route which close a reversible cycle. In this study, growth inhibition of dendrite as key issues in this process was investigated. Main cause of dendrite growth was because Al fine powder separated in consumption process of Al electrode was moved to Pd electrode. In an effort to avoid this, use of glass block with uniform holes was the most effective to inhibit the amount of dendrite to that of $AlH_3$. Furthermore, effects of Al electrode (anode) type and electrolyte concentration were investigated and the optimal condition for inhibiting dendrite formation was proposed.
Keywords
Hydrogen storage; Alane; Electrochemical; Dendrite;
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